Apparatus for polishing rolls.



J. L. HURLBY. APPARATUS FOB, POLISHING ROLLS. APPLIOATION FILED Nov. 16, y1912.

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J. L. HURLEY. APPARATUS FOR POLISHING ROLLS. APPLICATION FILED NOV.'16, 1912.

1,088,424. Patented Feb. 24, 1914.

2 SHEBTS*SHEET 2.

wr'rNEssEs. l NVENTOPL JOHN L. HURLEY, OF WOODLAWN, PENNSYLVANIA.

APPARATUS FOB. POLISHING ROLLS.

possess.

Speceation of Letters Patent.

Application filed November 16, 1912.

Patented Feb. 24, 1914.

Serial No. 731,676.

To all whom it may concern.'

Be it known that I, JOHN L. HURLEY, a

citizen of the United States, and resident of lVoodlawn, in the county of Beaver and State of Pennsylvania, have invented a new and useful Improvement in Apparatus for Polishing Rolls; and I do hereby declare the following to be a full, clear, and exact description thereo-f.

My invention relates to apparatus for polishing rolls.

The object of my invention is to provide a simple and effective form of mechanism which may be readily applied to the housings of a rolling mill, and so constructed that the device remains in operation while the rolling operation takes place, and furthermore, one which is not affected in its operation by the upward movement of the top roll.

To these ends my invention comprises the novel features hereinafter set forth and claimed.

ln the accompanying drawings Figure 1 is a front view of my improved apparatus as applied to rolls; Fig. 2 is an end view, the lower roll being partly shown; Fig. 3 is a part section of the top roll showing the grinding block holder in section; Fig. l is an enlarged plan view of the clutch mechanism; and Figs. 5 and 6 are details.

In the drawing the numeral 2 designates a suitable housing for the rolls 3 and Vt; Brackets 5 are carried by the housing the ends of said brackets resting on the lugs 6. These brackets are made up of strap iron, the parts being riveted together and said brackets are provided with the spring sea-ts 7 in which the springs 8 are seat-ed. The springs S are interposed between the brackets 5 and the frames 9. Pins 10 connect the frames 9 with the brackets 5, the springs 8 surrounding said pins. The action of the springs 8 tends to force the frames 9 upwardly. The frames 9 have the bearings 11 which support the feed screw 12. At one end the feed screw 12 carries the stationary clutch member 13 loosely mounted on the feed screw 12. The clutch member 13 has the crank arm 14C to which the pitman 15 is secured, the opposite end of said pitman being connected to the crank pin 16 on the gear wheel 17. The gear wheel 17 meshes with the ring gear 18, which is secured by the set screws 19 to the Wabbler 20 of the upper roll 8. The gear wheel 17 is mounted in the bearing 21 of the frame 9.

The screw shaft 12 has the sliding clutch members 22 and 23 and keyed thereto on opposite sides of the clutch member 13. Forked levers 24 and engage the clutch members 23 and 22, respectively, and said levers are fulcrumed at 2G to the frame 9. The inner ends of the levers 2st. and 25 are connected to the rod 27. The rod 27 has the double bevel collar 28 which is adapted to engage the spring fingers 29 secured to the frame 9. The rod 27 extends to the opposite housing where it is supported by the frame 9 on that side and said rod is provided with the adjustable collars 30.

The polishing block holder 31 is carried by the screw feed shaft 12, said holder having` a threaded opening through which said feed shaft passes. rlhe holder is provided with the seat 32 to receive the polishing block 33 which may be formed of carborundum or any other suitable abrading or polishing material, and the spring 34 acts to force said block normally into engagement with the working` face of the upper roll 3. The holder 31 is provided with the spring fingers 35 which are adapted to bear against the roll face and the outer ends of said lingers are slightly inclined upwardly and said lingers act as guards to prevent the metal when passed through the rolls from passing up between the holder and the rolls and causing' the difliculty which would arise from such miscarriage of the metal. The holder 31 is further provided with the idle roller 36 which bears against the face of the upper roll. The frame 9 is provided with the idle rollers 37 which bear against the neck of the upper roll to relieve the friction due to the upward pressure exerted by the springs S.

lVhen my improved apparatus has been installed in connection with a rolling mill in the manner above set forth, its operation will be as follows: The lower roll 4 is the power driven roll and when the pack of sheet metal is fed to the rolls the upper roll 3 will be rotated by the friction created by the pack passing between the rolls. The rotation of the upper roll will rotate the gear wheel 17 meshing with the ring gear 18 and a reciprocating motion is imparted thereby to the pitman 15. The clutch member 18 is oscillated on the screw shaft 12 and as shown in Fig. at, said clutch member is in engagement with the sliding clutch member 23. r1`he teeth on that side of the clutch member 13 engage the teeth of the member 23 so that on the inward movement of the pitman 15 the clutch member 13 will act to rotate the clutch member 23, and with it the screw shaft 12. On the return movement of the pitman the teeth of the clutch member 13 will slip over the teeth of the memw ber 23 and said member 23 is permitted to yield slightly to allow for this movement, and said clutch member 23 will move longitudinally on the shaft 12 sufficiently to allow for this disengagement of the teeth and at the same time the rod 27 will move slightly, the double cone collar 28 being forced slightly between the spring arms 29. The rotation of the shaft 12 causes the holder 31 to move along the face of the roll with the grinding block in contact therewith and when the holder strikes one of the collars the rod 27 will be moved longitudinally and its collar 28 forced between the spring arms 29 while at the same time the levers 24 and 25 will be operated so that the clutch member 22 will be thrown into engagement with the clutch member 13 and the clutch member 23 thrown out of engagement therewith. In the same manner as before described the clutch member 13 will rotate the clutch member 22 and with it the feed shaft 12, so that the polishing block will travel in the reverse direction across the face of the rolls until the holder again strikes one of the collars 30. During this operation the clutch members are held in engagement and looked in this position by the double cone collar 2S on the shaft 27 which is held from movement by the arms 29 until the resistance offered by the arms 29 is overcome, when the holder strikes the collar 30 and sufficient force is applied to force the double bevel collar 28 through the opening between the arms 29. There is consequently no danger of the clutch members being disengaged until the time for the reversing of the movement of the polishing bloclrhas arrived.

The springs S act to hold the frame 9 up in such position that the gear wheel 17 is always in engagement with the gea-r 19 and the polishing block 33 is held in constant engagement with the face of the roll. The upper roll in mills of this character is arranged to rest on the bottom roll and move upwardly under pressure during the rolling operation, and by my improved apparatus the springs 8 provide for keeping constant relation between the top roll and the movable frame, and the parts are always held in operative relation. Furthermore, the parts are so arranged that there is absolutely no interference with the rolling of the metal and the polisher may operate continuously and is shifted automatically so that it requires no attention upon the part of the operators of the mill.

Vhat I claim is:

1. The combination with the upper and lower rolls and housings, of an upwardly actuated frame engaging the roll-necks of the upper roll, an abrading device carried by said frame, and means for moving said abrading device along the roll.

2. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll, an abrading device carried by said frame, and means for moving said abrading device along the roll.

3. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll, a rotary screw feed shaft on said frame, a polishing block holder carried by said shaft, and means for rotating said shaft intermittently.

4. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll, a rotary screw feed shaft on said frame, a polishing block holder carried by said shaft, a gear wheel on said frame, the upper roll being upwardly yielding, a gear wheel carried by the upper roll meshing with said first named gear wheel, and connections between said rst named gear wheel and said screw shaft whereby an intermittent movement is imparted to said shaft.

5. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll, a rotary serew feed shaft carried by said frame, a polishing' block holder carried by said shaft, means for rota-ting said shaft intermittently, and means for reversing the direction of rotation of said screw shaft.

6. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll, a rotary screw feed shaft carried by said frame, a polishing bloc-l; holder earried by said shaft, a rotary clutch member carried b v said shaft, clutch members on said shaft adapted to engage said first named clutch member and means for oscillating said first named clutch member in a plane at right angles to the axis of said shaft.

7. The combination with the upper and lower rolls and housings, of a spring actuated frame engaging the roll-necks of the upper roll` a rotary sere-w feed shaft carried by said frame, an abrading block holder carried by said shaft, a gear wheel on said frame, a gear wheel carried by the upper roll engaging said first named gear wheel, an oscillatory clutch member on said shaft,

a pitman connecting said oscillatory clutch member with said first named gear wheel, and clutch members on said shaft adapted to engage said first named clutch member to reverse the rotation of said shaft.

S. The combination with the upper and lower rolls and housings, of a suitable frame, a rotary screw feed shaft carried by said frame, an abrading block holder carried by said shaft the upper roll being vertically yielding, and connections between said screw feed shaft and the top roll for rotating said shaft.

9. ri'lie combination with the rolls and housings, of a suitable frame, a rotary screw feed shaft carried by said frame, an abrading block holder carried by said shaft, a rotary clutch member on said shaft, means for oscillating said clutch-member in a plane at right angles to the axis of said shaft, slidable clutch members on said shaft at opposite sides of said first named clutch niember, and mechanism for throwing said slidable clutch members alternately into engagement with said first named clutch member operated by the movement of said abrading block holder.

l0. Vfhe combination with the rolls and housings, of a suitable frame, a rota-ry screw feed shaft carried by said frame, an abrading block holder carried by said shaft, a rotary clutch member on said shaft, means for oscillating said clutch-member in a. plane at right angles to the axis of said shaft, slidable clutch-members on said shaft at opposite sides of said first named clutchmeinber, lever arms conneced to said slidable clutch-members, a longitudinally movable rod connected to said .lever and means for moving said rod by the movement of said block holder.

1l. The combination with the rolls and housings, of a suitable frame, a rotary screw feed shaft carried by said frame, an abrading block holder carried by said shaft, a rotary clutch-member on said shaft, means for oscillating said clutch-member in a plane at right angles to the axis of said shaft, slidable clutch-members on said shaft at opposite sides of said first named clutchnrember, lever arms connected to said slidable clutch-members, a longitudinally movable rod connected to said levers and collars on said rod adapted to be engaged by said block holder.

l2. The combination with the rolls and housings, of a suitable frame, a rotary screw feed shaft carried by said frame, an abrading block holder carried by said shaft, a rotary clutch-member on said shaft, means for oscillating said clutch-member in a plane at right angles to the axis of said shaft, slidable clutch-members on said shaft at opposite sides of said first named clutch-member, clutch-levers, a rod connected to said clutchlevers, a double bevel enlargement on said rod, spring arms on said frame, between which said enlargement is adapted to pass, and means for moving said rod by the movement of said block holder.

13. lhe combination with the rolls and housings, of a suitable frame, a rotary screw feed shaft carried by said frame, an abrading block holder carried by said shaft, a rotary clutch-member on said shaft, means for oscillating said clutch-member in a plane at right angles to the axis of said shaft, slidable clutch-members on said shaft at opposite sides of said first named clutcli-member, clutch-levers, a rod connected to said clutchlevers, an enlargement on said rod, spring arms on said frame, between which said enlargement is adapted to pass, and means for moving said rod by the movement of said block holder.

lil. rlhe combination with the upper and lower rolls and housings, of a suitable frame, a` rotary screw feed shaft carried thereby, means for rotating said shaft, an abrading block holder carried by said shaft, and spring ingers carried by said block adapted to engage the upper roll.

l5. The combination with rolls and housings, of a. bracket supported by the housings, a movable frame carried by said bracket, springs interposed between said bracket and frame, a rotary feed shaft carried by said movable frame, an abradinO device carried by said shaft, and means for rotating said shaft.

1G. The combination with the upper and lower rolls and housings, of a bracket supported by the housings, a movable frame carried by said bracket engaging the rollnecks of the upper roll, springs interposed between said bracket and frame, an abrading device carried by said movable frame, and means for moving said abrading device along the roll.

fn testimony whereof, l thel said JOHN L. HUnLnY have hereunto set my hand.

JOHN L. HURLEY.

Witnesses ROBERT C. To'r'rnN, Jol-IN F. WILL.

@aptes of this patent may ee obtained for ve cents each, by addressing the Commissioner of Eetents,

Washington, D. C. 

